Ordering refurbished server PSUs? | Bitcointalksearch.org

damniatx

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Activity: 109

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Quote from: Vann on November 28, 2017, 11:51:12 AM

Server PSU's are made to run in an isolated server room with no regard to how loud they are. For a living space, you are better off with an ATX PSU. Larger server PSU's over 750 W are usually only compatible with 240V as well. I recently ordered one of these dual 120V 2400W PSU's for my ASRock H110 Pro BTC+ build. It has 18 PCI-E 6+2 connectors that I use for the GPU VGA power inputs. Total cost through PayPal was $181 and shipping via DHL direct from the manufacturer was very quick.

http://www.panto-tech.com/products/206-110v-260v-power-supply-2400W-for-miner.html

For a while it ran quiet at less than 50% of the capacity. When you run it at more than that, the fans got progressively louder the more wattage you pull from it. Recently the fans started running louder and it became annoying to deal with the constant high pitched whining sound. It also developed an issue where when the fans spun down, the voltage would drop momentarily and the hash on the cards would drop until it stabalized. I got tired of dealing with the noise and switched to a triple ATX PSU setup with a triple ATX power adapter cable.

https://www.aliexpress.com/item/New-24-Pin-20-4Pin-Triple-PSU-ATX-Power-Supply-Adapter-Cable-18AWG-Wire-For-Mining/32827769189.html?

woa this triple psu atx much better than those server psu. i don't know we dont have this already.

japaninja

newbie

Activity: 26

Merit: 0

Quote from: Vann on November 28, 2017, 11:51:12 AM

Server PSU's are made to run in an isolated server room with no regard to how loud they are. For a living space, you are better off with an ATX PSU. Larger server PSU's over 750 W are usually only compatible with 240V as well. I recently ordered one of these dual 120V 2400W PSU's for my ASRock H110 Pro BTC+ build. It has 18 PCI-E 6+2 connectors that I use for the GPU VGA power inputs. Total cost through PayPal was $181 and shipping via DHL direct from the manufacturer was very quick.

http://www.panto-tech.com/products/206-110v-260v-power-supply-2400W-for-miner.html

For a while it ran quiet at less than 50% of the capacity. When you run it at more than that, the fans got progressively louder the more wattage you pull from it. Recently the fans started running louder and it became annoying to deal with the constant high pitched whining sound. It also developed an issue where when the fans spun down, the voltage would drop momentarily and the hash on the cards would drop until it stabalized. I got tired of dealing with the noise and switched to a triple ATX PSU setup with a triple ATX power adapter cable.

https://www.aliexpress.com/item/New-24-Pin-20-4Pin-Triple-PSU-ATX-Power-Supply-Adapter-Cable-18AWG-Wire-For-Mining/32827769189.html?

Did you order directly from the website? It seems sketchy. And compared to other server PSU's this one is only 80+ gold. So efficiency is only at par with regular consumer ATX PSUs. Sorry but I have no idea why you would buy these because the build quality looks bad and the website and marketing seems false.

Vann

hero member

Activity: 1036

Merit: 606

Server PSU's are made to run in an isolated server room with no regard to how loud they are. For a living space, you are better off with an ATX PSU. Larger server PSU's over 750 W are usually only compatible with 240V as well. I recently ordered one of these dual 120V 2400W PSU's for my ASRock H110 Pro BTC+ build. It has 18 PCI-E 6+2 connectors that I use for the GPU VGA power inputs. Total cost through PayPal was $181 and shipping via DHL direct from the manufacturer was very quick.

http://www.panto-tech.com/products/206-110v-260v-power-supply-2400W-for-miner.html

For a while it ran quiet at less than 50% of the capacity. When you run it at more than that, the fans got progressively louder the more wattage you pull from it. Recently the fans started running louder and it became annoying to deal with the constant high pitched whining sound. It also developed an issue where when the fans spun down, the voltage would drop momentarily and the hash on the cards would drop until it stabalized. I got tired of dealing with the noise and switched to a triple ATX PSU setup with a triple ATX power adapter cable.

https://www.aliexpress.com/item/New-24-Pin-20-4Pin-Triple-PSU-ATX-Power-Supply-Adapter-Cable-18AWG-Wire-For-Mining/32827769189.html?

Branko

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How you made switch from pico ADAPTERS to pico PSUs?

Google pico adapter to find what 0xcosmos was talking about

wacko

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Quote from: Tidsdilatation on November 28, 2017, 10:28:56 AM

I got some experience in this. Generally Refurbished means that its a product that was sold, and opened by a costumer. But for some reason returned. A small percentage of these have been broken but fixed. Generally its just returns. Keep this in mind when you see the price.

That's more relevant for ordinary mass consumption stuff like all sorts of electronic gadgets people buy from amazon etc. A lot of those get returned and then re-sold as "refurbished", so they're often new or like new items. But with something like server PSUs it's rarely the case, most of the refurbished server hardware was used before, sometimes used a lot. Then it gets decommissioned, and either goes straight to some sale platform like ebay and gets listed as "used", or it first goes through some technicians that clean it, test it, and then list it for sale as "refurbished".

So as far as I'm aware most of the refurbished server hardware was used before. Often used in production systems for years. Still worth buying if the price is right, but don't expect it to be like new.

japaninja

newbie

Activity: 26

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Nice info. Helpful if you want to build your own server PSU. I looked at some for sale as well.

Do PICO PSUS really not include the 6-pin to DC input cable? On aliexpress its sold seperately. Is this normal?

wacko

legendary

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Quote from: jmigdlc99 on November 28, 2017, 10:31:43 AM

Asking because I found one PICO PSU rated 250 watts while another is rated 150 watts. Will getting the 150w version mean energy savings?

It's just like with any other PSU — the number of Watts is the rated maximum allowed load. The actual consumption is a completely different matter and it'll depend on your system and the PSU's efficiency. If the 250w version is more efficient then your consumption might be a bit lower with it. But with these units you're probably saving a couple watts at best. Check the PSU's specs and find out what efficiency each of them has.

jmigdlc99

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Quote from: 0xcosmos on November 28, 2017, 10:21:59 AM

Quote from: Tidsdilatation on November 28, 2017, 10:28:56 AM

Thanks guys. Found some good products based on your recommendations. With regards to the PICO psu, do you know the difference between PICO PSUs with higher power consumption?

Asking because I found one PICO PSU rated 250 watts while another is rated 150 watts. Will getting the 150w version mean energy savings?

Tidsdilatation

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Activity: 518

Merit: 250

I got some experience in this. Generally Refurbished means that its a product that was sold, and opened by a costumer. But for some reason returned. A small percentage of these have been broken but fixed. Generally its just returns. Keep this in mind when you see the price.

0xcosmos

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refurbished server psu should be alright until and unless they are from a reputable company like hp, dell, etc
I know aliexpress has some pico adapters and stuff for a really good price

jmigdlc99

sr. member

Activity: 784

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Lately i've been seeing some low down deals on refurbished PSUs that may be too hard to pass on. Does anyone have experience buying these online?
Would you also know of a good place where to buy PICO and breaktout board adapters? Like the ones on parallelminer.com but cheaper Wink

Topic: Ordering refurbished server PSUs? (Read 344 times)